Delve into the complexities of modern transportation systems in this comprehensive lecture by Diana Gragg, Core Lecturer in Civil and Environmental Engineering at Stanford University. Explore key topics including the big picture of transportation, externalities and policy implications, air pollution regulation, fuel policies, vehicle efficiency standards, and the push towards electrification. Gain insights into the challenges of managing vehicle miles traveled and understand the concept of embodied energy in transportation. This in-depth discussion provides a thorough overview of the current state and future directions of transportation, making it valuable for students, professionals, and anyone interested in sustainable mobility solutions.